HDSL4 LOOP SPECIFICATIONS
FOR OPTIMUM OPERATION
NOTE: The H4TU-Cs P/N 1221401L6, 1221403L6, 1221404L6 support only one H4R in the HDSL4
circuit.
■ HDSL4 circuit containing no H4Rs will reach up to 16 kft on the local loop (24
AWG)
■ HDSL4 circuit containing one H4R will reach up to 16 kft on the first segment and
15 kft on the second segment (24 AWG).
■ HDSL4 circuit containing two H4Rs will reach to 13.5 kft on the first segment, 14 kft
on the second segment, and 15 kft on the third segment (24 AWG). *
NOTE: Refer to the H4TU-C or H4TU-R Installation and Maintenance Practice, Section HDSL4,
Deployment Guidelines, for other loop parameters including Insertion Loss, Pulse
Attenuation, and Resistance Budgets for span powering
*This is one example of a circuit with 2 H4Rs. Other loop length configurations are
possible in compliance with loop resistance restraints. Refer to the H4R Installation
and Maintenance Practice, Section HDSL4 Deployment Guidelines, for other loop
parameters including Insertion Loss, Pulse Attenuation, and Resistance Budgets for
span powering.
UNIT RESISTANCE
Measurements are with no power applied
The H4R Tip-to-Ring resistance is approximately 6 Ω for each pair.
COMPLIANCE
This product complies with UL 60950, third edition. It is intended for
installation in restricted access locations only and in equipment with a Type “B” or
“E” installation code. Ensure chassis ground is properly connected.
WARRANTY
Warranty for Carrier Networks products manufactured by ADTRAN and supplied
under Buyer’s order for use in the U.S. is ten (10) years. For a complete copy of
ADTRAN’s U.S. and Canada Carrier Networks Equipment Warranty
(P/N 60000087-10): call (877) 457-5007, faxback Document 414.
H4TU-C VMDF H4R1 H4R2 H4TU-R
TURNUP & TROUBLESHOOTING GUIDE
PRICING AND AVAILABILITY 800.827.0807
TECHNICAL SUPPORT 800.726.8663
RETURN FOR REPAIR 256.963.8722
www.adtran.com
61221445L1-22B
239 H4R Capacity Guidelines for ADTRAN Housings
PART No. Description CLEI CODE Slot Stub H4R Capacity Material
Above Below
Ground Ground
1150027L1 239/439 Housing DDMOABA1MA 4 Air 4 4 Stainless/Poly
1150027L2 239/439 Housing DDMOBBA1MA 4 Gel 4 4 Stainless/Poly
1152010L3 239/439 Housing DDMOBAE1RA 2 Gel 2 2 Polymer
1152010L4 239/439 Housing DDMOAAE1RA 2 Air 2 2 Polymer
1150057L1 Universal Housing DDMODAO1RA 4 Air 4 4 Stainless Steel
1150057L2 Universal Housing DDMOCAO1RA 4 Gel 4 4 Stainless Steel
1150058L1 Universal Housing DDMOEEO1RA 8 Air 8 8 Stainless Steel
1150058L2 Universal Housing DDMOFE01RA 8 Gel 8 8 Stainless Steel
1190816L1 16-Slot BG Housing DDMOES0IRA 16 Air 16 16 Stainless Steel
1190816L2 16-Slot AG Housing DDMOFS0IRA 16 Gel 16 16 Stainless Steel
1190816L3 16-Slot AG Housing DDMOMS01RA 16 Air 16 16 Stainless Steel
239 H4R Capacity Guidelines for Other Housings
Manufacturer Description Manufacturer’s Part Number Slot Stub H4R Capacity Material
Above Below
Ground Ground
ADC Radiator II SPX-HRXC-30-AG-016GT 16 Air 16 16 Stainless Steel
ADC Radiator II SPX-HRXC-30-BG-016GT 16 Gel 16 16 Stainless Steel
ADC Radiator SPX-HRXC-30-B1 8 Air 8 8 Stainless Steel
Circa Telecom HDSL-12A 760005 12 Air 12 12 Polymer
Circa Telecom HDSL-12B 760006 12 Gel 12 12 Polymer
Arris Keptel
®
Inter Link
™
809 RF809A3-XXX or RF809B3-XXX 12 Gel 8
1
N/A Polymer
Arris Keptel
®
Inter Link
™
818/819 RF819A1 or RF819A2 25 Air 12
2
16
3, 4
Polymer
Arris Keptel
®
Inter Link
™
818/819 RF819B1 or RF819B2 25 Gel 12
2
16
3, 4
Polymer
Arris Keptel
®
Inter Link
™
RF820AX or
820 Family RF820BX 2-8 Air Full Full Polymer
Arris Keptel
®
Inter Link
™
RF820AX or
820 Family RF820BX 2-8 Gel Full Full Polymer
1
The recommended 8 slot assignments for above ground installation are as follows: 1, 3, 4, 6, 7, 9, 10, 12.
2
The recommended 12 slot assignments for above ground installation are as follows: Chamber 1: 1, 4, 7, 8, 11, 14 and Chamber 2: 15, 17, 19, 20, 23, 25
3
For 16 slot use, the ambient air temperature measured 1 ft away and parallel to the housing should not exceed 115ºF (46.1ºC).
4
The recommended 16 slot assignments for below ground installation are as follows: Chamber 1: 1, 3, 5, 7, 8, 10, 12, 14 and Chamber 2: 15, 16, 18, 19, 20, 22,
24, 25
Code Input Output
Power Code (PC) C C
Telecommunication Code (TC) X X
Installation Code (IC) A –
First Segment
Second Segment Third Segment